NPPES file of Aug 9, 2026

Matthew P. Walters, MD

Anatomic Pathology & Clinical Pathology Physician · Green Bay, WI

Matthew P. Walters, MD is an anatomic pathology & clinical pathology physician with a practice address in Green Bay, Wisconsin, and NPI 1497835862, issued on Oct 17, 2006. Check the license (Wisconsin 51649-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497835862
Name
Matthew P. Walters
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License numbers
51649-20 WI
104878 MN
53509 MN
Self-reported in NPPES; status is on the state search
Practice location
2845 Greenbrier Road, Green Bay, WI 54311
Phone
(920) 288-4746
Enumerated
Oct 17, 2006
Record last updated
Dec 30, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(920) 288-4737
Medicaid ID
ENROLLED MN
Medicare enrollment
Enrolled (PECOS I20110906000469); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2845 Greenbrier Road

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Matthew Snyder, MDAnatomic Pathology & Clinical Pathology Physician1053346205

Verify Matthew P. Walters in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 51649-20
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Great Lakes Pathologists SCKenosha, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Matthew P. Walters among 335 anatomic pathology & clinical pathology physician records in Wisconsin

Matthew P. Walters, MD is one of 335 anatomic pathology & clinical pathology physician records with a practice address in Wisconsin. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 47% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2006 · median 2004 among the 166 with a school on file
  • Record last updated2021 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in Wisconsin

There are 335 anatomic pathology & clinical pathology physician records in Wisconsin.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Timothy Chamberlain, MDGreen Bay, WI 543111942235353
  2. Matthew Snyder, MDGreen Bay, WI 543111053346205
  3. Robert Cutlan, MDGreen Bay, WI 543031821021239
  4. Oliver Graf, M.D.Green Bay, WI 543031124262480
  5. Paul Holzman, MDGreen Bay, WI 543031487670360
  6. Robert Murphy, MDGreen Bay, WI 543031225054992
  7. Darrell Skarphol, M.D.Green Bay, WI 543021922231414
  8. John Brady, M.D.Green Bay, WI 543011649210105

Common questions

What is Matthew P. Walters, MD's NPI number?

Matthew P. Walters, MD's National Provider Identifier (NPI) is 1497835862, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Matthew P. Walters, MD located?

The NPPES record lists a practice address at 2845 Greenbrier Road, Green Bay, WI, 54311. Phone: (920) 288-4746. Providers update this record themselves, so call before visiting.

How can I verify Matthew P. Walters, MD's license?

NPPES lists Wisconsin license number 51649-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.